Common questions

1. What are Lubricants?

2. What is mineral base oil?

3. What is synthetic base oil?

4. What is the function of lubricating oil?

5. What is viscosity?

6. What is a multigrade lubricating oil?

7. Is it better to use an SAE 15W-40 oil or an SAE 40?

8. Why change engine lubricating oil?

9. When to change the oil?

10. What can happen to the engine if the oil continues to be used after the recommended change period?

11. What problems can excess or lack of oil cause in the engine?

12. What is the correct way to check the oil level?

13. When should I top up engine oil?

14. Can just replacing the oil and never changing it cause damage to the engine?

15. Can oils from different brands and types be mixed?

16. Should additives be added to the oil?

17. Why does engine oil turn dark after a while of use?

18. Through touch, can I know whether or not the oil is in usable condition?

19. What is SAE rating?

20. What is API classification?

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